期刊
JOURNAL OF EUKARYOTIC MICROBIOLOGY
卷 62, 期 5, 页码 567-583出版社
WILEY
DOI: 10.1111/jeu.12209
关键词
Apidae; flagellate; Kinetoplastea; Leptomonas; protists; systematics; taxonomy; ultra-structure
类别
资金
- U.S. National Science Foundation Dimensions in Biodiversity [1046153]
- Research Foundation-Flanders (FWO) [G.0628.11]
- Direct For Biological Sciences
- Division Of Environmental Biology [1046153] Funding Source: National Science Foundation
- Division Of Environmental Biology
- Direct For Biological Sciences [1415604] Funding Source: National Science Foundation
Trypanosomatids are increasingly recognized as prevalent in European honey bees (Apis mellifera) and by default are attributed to one recognized species, Crithidia mellificae Langridge and McGhee, 1967. We provide reference genetic and ultrastructural data for type isolates of C. mellificae (ATCC 30254 and 30862) in comparison with two recent isolates from A. mellifera (BRL and SF). Phylogenetics unambiguously identify strains BRL/SF as a novel taxonomic unit distinct from C. mellificae strains 30254/30862 and assign all four strains as lineages of a novel clade within the subfamily Leishmaniinae. In vivo analyses show strains BRL/SF preferably colonize the hindgut, lining the lumen as adherent spheroids in a manner identical to previous descriptions from C. mellificae. Microscopy images show motile forms of C. mellificae are distinct from strains BRL/SF. We propose the binomial Lotmaria passim n. gen., n. sp. for this previously undescribed taxon. Analyses of new and previously accessioned genetic data show C. mellificae is still extant in bee populations, however, L. passim n. gen., n. sp. is currently the predominant trypanosomatid in A. mellifera globally. Our findings require that previous reports of C. mellificae be reconsidered and that subsequent trypanosomatid species designations from Hymenoptera provide genetic support.
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